Thread-partner for looms.



Patented Oct. m, I899 E. P. MASON. THREAD PABTER FOR LOOMS.

(Application filed May 16, 1899.)

(No Model'.)

norms PEIERS cc. PHOTO-Unfit)" wAsmnomw n c FFTQEEB llNiTnn STATES PATENT EARL P. MASON, OF NEWPORT, RHODE ISLAND, ASSIGNOR TO THE DRAPER COMPANY, OF PORTLAND, MAINE, AND HOPEDAIYE, MASSACHUSETTS.

THREAD-PARTER FOR LOOMS.

SPECIFICATION forming part of Letters Patent No. 634,852, dated October 10, 1899.

Application filed May 16, 1899. Serial No. '7l'7,052. (No model.)

To all whom, it may concern: side for a purpose to be described, rotation Beitknown that I, EARL P. MASON, of Newof the shaft cl moving the bunter to bring port, county of Newport, State of Rhode the projection a at the next forward beat of Island, have invented an Improvement in the lay into position to enter the notch Z) in 5 5 5 Thread-Parters for Looms, of which the folthe end of a dog I). The said dog is secured lowing description, in connection with the acby a set-screw 3 to a shaft 0, mounted to rock coinpanying drawings, is a specification, like in bearings d (1 (1 the former two bearings letters and figures on the drawings representbeing herein shown as forming part of a casting like parts. ing D, secured to the lay in any suitable man- 60 This invention relates to looms provided ner, as by a bolt 4. A collar 0', fast on the with automatic filling-supplying mechanism shaft 0, has attached to it one end of a spring whereina fresh supply of fillingis transferred .9, the other end thereof being secured to the from a filling-feeder by or through the accasting D, the spring normally maintaining tion of a suitable filling-feeler when the fillthe dog I) in the position shown, a stop d on 65 :5 ing has been exhausted to a predetermined the bearing d being engaged by a lug b on extent-much, forinstance,as shown in United the hub of the dog, as herein shown, to limit States Patent No. 600,016, dated March 1, the movement of the shaft 0, due to the spring. 1898; and the present invention has for its WVhen the projection a enters the notch I), object the parting of the filling closely adjathe shaft 0 is rocked against its spring and 7o cent the selvage of the cloth just before the elevates the end of an arm 6, adjustably se-' ejection of the nearly-exhausted filling-supcured on the shaft by a suitable set-screw, as ply and the insertion of the fresh supply of 5, the arm having pivoted thereto at a one filling. end of a longitudinally-adj ustable link,shown Various novel features embodied in my inas comprising a yoke g, connected with the 75 2 5 vention will be hereinafter described, and arm 6, a threaded rod g, screwed into said yoke particularly pointed out in the following at one end, and a second yoke 9 screwed onto claims. the other end of the rod g'.

Figure 1 is a section of a sufficient portion The casting D is extended above the lay of aloom to be understood, taken transversely and at the back thereof, as herein shown, to 80 to the lay and having one form of my invenform a shroud cl for the parting members tion embodied therein. Fig. 2 is an enlarged when they are in normal position, the lay befront elevation of a portion of the lay with ing recessed, as at a (see dotted lines, Figs. the thread-parting mechanism mounted there 1 and 2,) at the foot of the. shroud. A grid on. Fig. 3 is a top or plan view thereof. Fig. m, having, preferably, three slots m, as shown 8 5 4 is a rear elevation thereof, and Fig. 5 is a in Fig. 3, is sunk in the lay to lie flush with perspective view of the thread-engaging memthe shuttle-race adjacent the selvage of the hers detached. cloth being woven and projecting in front of Referring to Fig. 1, the frame. A, lay A the shroud at its foot, and the shroud is probreast-beam A and actuating or starting vided with a cross-pin h onwhich are ful 90 4o rock-shaft d are and may be all substantially crumed the parting members h and 7t. The as shown in the patent referred to, the shaft member h is shown as a blade having its cl being rocked in the direction of arrow 20 lower end 71 bent rearwardly and pivotally by or through the filling-feeler (not shown) connected at 7Z3 between the ends of the yoke to effect the transfer of a fresh supply of fillg while the member 7t is two-part, its two 5 5 ing from the filling-feeder when the previous fingers being arranged at opposite sides of the supply has been exhausted toapredetermined blade'h, with their lower ends bent forward extent. at h and connected by a pin 6, so that they A dagger or bunter 0. is secured to the rockwill rock in unison, a spring 3 between the shaft d bya suitable set-screw 2, the free end lower oppositely-bent ends of the single and too of the hunter having a projection ct, provided double parting members normally separating with a convex cam-surface a on its upper their upper ends. The blade hismovable on pletes its movement.

itsfulcrun'l in a vertical plane passing through the center slot or depression on of the grid m, while the fingers of the codperating member h are adapted to enter the outer slots of the grid. When the shaftois rocked, as has been described, the arm 6 is swung upward and through the adjustable link the parting members 7t and h are turned in unison on their common fulcrum until the fingers of the latter member enter the grid-slots and rest upon the lay. As they move down into such position they engage the filling-thread and depress'it into the outer slots, holdingit taut across the middle slot of the grid, and the continued forward movement of the lay opcrates thereafterto force the blade or parter h down against the stretched thread, parting it between the fingers 7t, which thus serve as downholds for the thread as it is severed, the spring 3 stretching as the blade h com- VVhen this operation has'been effected, the movement of the lay brings the lip b of the dog into engagement with the cam-surface a of the hunter a, disengaging the latter from the dog, andthus releasing the rock-shaft 0 before the lay has completed its forward stroke, the spring 5 thereof returning the rock-shaft and the thread-parting device to normal position, (shown in the drawings,) so that the parting of the thread and the return of the mechanism to normal position take place before the transfer of fresh filling.

Inasmuch as the automatic filling-changing type of loom herein referred to is so well known and in extended use I have not herein shown any of such filling-changing mechanism, except the controlling shaft d,thus avoiding multiplication ofdrawings and description of well-known devices.

My invention is not restricted to the precise construction and arrangement herein shown and described, as the same may be modified or rearranged in various particulars without departing from the spirit and scope of my invention.

Having fully described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. In a loom provided with automatic filling-supplying mechanism, a controller therefor, the lay, means mounted thereon to part the old filling-thread, including a two-part downhold to engage and hold the thread upon the raceway of the lay, and a cooperating member to engage and part the thread between the holding-p0iuts,and actuating mechanism to move the downhold into operative position and to thereafter actuate the parting member, operation of the controller effecting the operation of said actuating mechanism.

2. In a loom provided with automatic filling-supplying mechanism, a controller there for, the lay, a two-part downhold and a cooperating yieldingly-connected thread-parter, both pivotally mounted on the lay and relatively movable, and actuating mechanism to move the downhold and parter bodily to bring the former into engagement with and tohold the thread at two separated points, continued operation of said mechanism moving the parter independently to part the thread between such points while held, the operation of the actuating mechanism being effected by or through the operation of the controller.

3. In a loom provided with automatic filling-supplying mechanism, a controller therefor, the lay, a two-part downhold and a 00- operating yieldingly-connected thread-parter between the parts of the downhold, both pivotally mounted on the lay and relatively movable, and mechanism positively connected with the thread-parter, to rock it and the downhold in unison to bring the latter into engagement with the thread, and to thereafter move the parter independently to part the thread between and while held by the two parts of the downhold, operation of the controller effecting the operation of said mechanism.

4. In a loom provided with automatic filling-supplying mechanism, a controller therefor actuated by or through partial exhaustion of the filling, the lay, means mounted thereon to part the old filling-thread, said means including a movable two-part downhold and a cooperating parting blade, and actuating means governed by said controller, to move the downhold into engagement with and to hold the thread upon the raceway of the lay, and to thereafter move the parting-blade to sever the thread while held.

5. In a loom, the lay having three transverse recesses in its race adjacent the clothselvage, thread parting means pivotally mounted on the lay, including a two-part downhold and an intermediate parter, ayield- .ing connection between them, mechanism positively connected with the parter, to move it and the downhold in unison until the latter has engaged the thread and entered the outer recesses in the lay, the parter thereafter moving independently to enter the central recess and part the thread stretched across it, and means to effect the operation of said mechanism.

6. In a loom, the lay, thread-parting means thereon including a downhold and a cooperating, yieldingly connected parter, both bodily movable, and mechanism to move the downhold and parter in unison until the former engages the thread, the parter thereafter moving independently to part the thread so held, said mechanism including a dog hav ing a releasing-lip,combined with a hunter adapted to engage and move the dog, a projection on the hunter to be engaged by the releasing-lip when the movement of the dog has been completed, to thereby disengage said dog and hunter, and means to move the hunter into operative position.

7. In a loom provided with automatic filling-supplying mechanism, a controller therefor operative upon exhaustion of the filling 10 the dog and bunter before the lay has com- 1 pleted its forward movement, whereby the parting means Will be actuated before filling transfer.

In testimony whereof I have signed my name to this specification in the presence of I 5 two subscribing Witnesses.

EARL P. MASON. Witnesses:

GEO. OTIS DRAPER, ALBERT H. OoUsINs. 

